Patients with symptoms of punctate inner chorioretinopathy mainly complain of black shadows in front of one eye, flashing sensation, dark spots, blurred vision and decreased visual acuity. How to diagnose the symptoms of monocular preoptic black shadow? 1.Symptoms Patients mainly complained of monocular black shadow in front of the eyes, flashing sensation, dark spots, blurred vision and vision loss, vision loss is mostly mild (more than 0.5), some patients may have severe vision loss (can be reduced to 0.04), no eye redness, eye pain and other manifestations, not accompanied by systemic diseases. The typical changes are multiple scattered yellow-white round lesions, 50-300 μm in size, located at the level of the retinal pigment epithelium and inner choroid, mainly concentrated in the posterior pole, and some lesions may be accompanied by placental retinal detachment. These lesions usually resolve after several months, leaving behind either retinal pigment epithelial disorder or an atrophic choroidal retinal scar, which later becomes a scar with chiseled edges. The patient’s anterior segment is usually unchanged, and unlike many other types of inflammation involving the retinal pigment epithelium and choroid, this lesion does not present with intravitreal inflammatory cells. The diagnosis of this disease is based on typical fundus changes, such as scattered multiple subretinal yellow-white round lesions, without inflammatory reaction in the anterior segment of the eye or vitreous. Fluorescein fundus angiography and indocyanine green angiography can be helpful in the diagnosis.